Michael,
I should probably look closer myself @ the design of 1.2 vs 1.1 but I've
been curious why Spark's in-memory data uses the heap instead of putting it
off heap? Was this the optimization that was done in 1.2 to alleviate GC?
On Mon, Nov 3, 2014 at 8:52 PM, Shailesh Birari
Yes, I am using Spark1.1.0 and have used rdd.registerTempTable().
I tried by adding sqlContext.cacheTable(), but it took 59 seconds (more than
earlier).
I also tried by changing schema to use Long data type in some fields but
seems conversion takes more time.
Is there any way to specify index ?
